How to Fall Slower Than Gravity By Adhemar Bultheel 14 / Aug / 2019 Read more about How to Fall Slower Than Gravity
Figures for Fun: Stories, Puzzles and Conundrums By Adhemar Bultheel 16 / Nov / 2015 Read more about Figures for Fun: Stories, Puzzles and Conundrums
Mathematical Curiosities. A Treasure Trove of Unexpected Entertainments By Adhemar Bultheel 25 / Aug / 2014 Read more about Mathematical Curiosities. A Treasure Trove of Unexpected Entertainments
Jim Totten's Problems of the Week By Adhemar Bultheel 5 / Nov / 2013 Read more about Jim Totten's Problems of the Week